32results about How to "Fix blocking issues" patented technology

The invention provides a communicator inside and outside conduits based on very low frequency power electromagnetic pulse and relates to the communication field. The invention solves the problem of shielding of electromagnetic signals by metallic layers. A very low frequency power electromagnetic pulse emitter provided by the invention and the transmitting terminal of a microcontroller (3) transmit a very low frequency power electromagnetic pulse signal; a magnetic induction receiving antenna group (4) receives the very low frequency power electromagnetic pulse signal, and converts the very low frequency power electromagnetic pulse signal into a voltage signal, and transmits the voltage signal to a signal processing and transmission device (5). The signal processing and transmission device (5) filters and magnifies the voltage signal, extracts the signal components which are the same with the frequency of the emitter, and transmits the signal components to a computer (6) for data analysis and resolving communication instructions. The invention can communicate reliably inside and outside in the environment of metallic conduits. By adopting the invention, when a signal is transmitted in metal, silt, soil and briny environment, the electromagnetic signal attenuation factor is small. By comparing the signal transmitted by the invention with high frequency electromagnetic wave signals, the propagation length of the signal in a lossy medium is significantly improved.

The invention relates to the technical field of door locks and particularly relates to an NFC (Near Field Communication) door lock system and an unlocking method thereof. The NFC door lock system comprises an NFC label and a door lock, wherein the NFC label stores a bluetooth pairing instruction and an unlocking instruction which can be read by an NFC terminal; the door lock is mounted on the inner side of a door; the door lock comprises a bluetooth module; the bluetooth module is connected with a clutch driving mechanism of the door lock, is used for receiving the bluetooth pairing instruction and the unlocking instruction which are sent by the NFC terminal, is paired with the NFC terminal according to the bluetooth pairing instruction, is used for controlling the clutch driving mechanism to unlock according to the unlocking instruction after the pairing is successful, and is paired with bluetooth of the NFC terminal after the unlocking is canceled. With the adoption of the manner, the door lock is not arranged on the outer side of the door and the difficulty of carrying out illegal technical unlocking on the outer side of the door is greatly lowered; the safety of the door lock is improved.

The embodiment of the invention is applicable to the technical field of container management, and provides a container monitoring terminal and a container monitoring system, and the container monitoring terminal comprises a control unit, and a positioning unit, a sensing unit and a communication unit which are respectively connected with the control unit; wherein the positioning unit is used for collecting position information of a container and transmitting the position information to the control unit; the sensing unit is used for collecting state information of a container and transmitting the state information to the control unit. The control unit is used for carrying out fusion processing on the position information and the state information to obtain positioning data of the containerand transmitting the positioning data to the communication unit; and the communication unit is used for sending the positioning data to a container management platform. By adopting the container monitoring terminal, the state of the container in each operation link such as loading and unloading, transportation and the like can be monitored.

The invention discloses an intelligent curved-screen glass pasted-film and a preparation method thereof. The intelligent curved-screen glass pasted-film comprises a curved glass layer, a first adhesive layer, a graphene conducting layer, a PET film and a second adhesive layer. The curved glass layer includes an outer surface and an inner surface. The graphite conducting layer coheres with the inner surface of the curved glass layer through the first adhesive layer. One surface of the PET film is attached to the graphene conducting layer, and the other surface is provided with the second adhesive layer. Compared with traditional intelligent ITO three-layer-structure protection films, the intelligent pasted film of the invention has better advantages on all aspects of curved attachment, bending resistance ( the film can be repeatedly pasted on intelligent mobile phones many times) and the like, achieves an effective function protection film, and solves problems that an entire curved screen cannot be protected, and a conduction area shields touch control icons of a window area of a display screen, that is, the conduction area shields the touch control icons (also called virtual keys)on a touch function area (the window area) of the display screen and causes touch insensitivity.

The invention discloses a melting and electromagnetic constraint shaping system capable of performing efficient electro-thermal conversion, relates to a melting and electromagnetic constraint shaping system, and aims to solve the problems of excessively large loss of a crucible, difficulty in smelting a high-titanium-niobium aluminum alloy or poor superheat degree of high-titanium-niobium aluminum alloy liquid, non-uniform electromagnetic force and poor organization control effect due to small cavity size of the conventional continuous melting and electromagnetic constraint system and unreasonable matching of a sensor and the crucible. The melting and electromagnetic constraint shaping system comprises a crucible main body, a water inlet pipe, a water outlet pipe, a thin water pipe, an induction coil and a magnetizer, wherein the crucible main body consists of an upper half body and a lower half body; each of the upper half body and the lower half body is processed from an integral copper block through linear cutting and drilling; the water inlet pipe is communicated with the lower half body through the thin water pipe; the water outlet pipe is communicated with the lower half body through the thin water pipe; the induction coil sleeves the upper half body; the magnetizer surrounds the outside of the induction coil. The melting and electromagnetic constraint shaping system is applied to the field of electro-thermal conversion.

The invention provides a data processing method and device, a computer device and a storage medium, and the method comprises the steps: a screening server obtaining the feature information of a targetobject stored in a block chain system; the screening server determining whether preset key information exists in the feature information or not; and under the condition that the preset key information is determined to exist in the feature information, the screening server returning a processing request to the block chain system, and the processing request being used for indicating the block chainsystem to execute preset processing operation on the target object. According to the scheme, the technical problem that a scheme for effectively processing the sensitive information on the chain is lacked at present is solved, and the technical effects of effectively processing the sensitive information on the chain and reducing the processing cost and the processing difficulty are achieved.

The invention discloses an intelligent screen pasting film. The intelligent screen pasting film comprises a PET film, the PET film is adopted as the surface of the intelligent mobile phone pasting film, one face of the PET film is provided with a functional coating, the other face of the PET film is provided with a graphene conductive film, and the graphene conductive film is attached to an AB glue layer. According to the AB glue layer, different glue layers are arranged on the two faces of the PET film correspondingly, the face A is the face where the PET is attached to a graphene layer and is provided with an acrylate bonding agent, and the face B is the face attached to a screen and is provided with a silica gel system light bonding agent. Compared with a traditional ITO three-layer structure intelligent protection film, the intelligent pasting film has better advantages in thickness, bending resistance and other aspects, the intelligent pasting film can be repeatedly pasted on a smart phone many times, the ultrathin functional protection film is obtained, and the problems that the overall thickness of the protection film is large, and a conduction area shields a touch control icon or a touch control point of a display screen view window area are solved.

The invention relates to the municipal facility field and especially relates to an intelligent well lid with a long communication distance and low usage cost. The intelligent well lid disclosed in the invention is characterized in that the well lid comprises a nonmetal well lid body and a surface-shape antenna; the surface-shape antenna is embedded into a front side of the well lid body; a surface of the surface-shape antenna, which is located on the front side of the well lid body, at least possesses a bare portion; and a feeder line end of the surface-shape antenna passes through the well lid body and is extended to a back side of the well lid body, and is used to connect an RF emission module. In the invention, a problem that signals are shielded by the well lid is avoided; a communication distance is increased and usage cost is reduced.

The invention discloses an antenna structure design capable of measuring deformation. A sensor network is arranged on the front surface of a reflecting panel, a reserved mounting groove is embedded, equipment mounting on the surface of the reflecting panel is not influenced, strain data is generated along with the deformation of the reflecting panel, the real-time morphology of the reflecting surface of an antenna is calculated by adopting a reconstruction algorithm, and an ultrathin optical fiber sensor is adopted, only 1.2 mm grooves need to be formed in the panel, rigidity losses and a structural interference stress caused by array surface lightening and thinning are avoided, problems that naked grating gluing reliability is poor and a screw joint size of an integrated sensor is large are solved, parallel connection different from resistance strain gauges in series connection is adopted, cables are reduced by more than 90%, stability and an anti-interference capacity are high, and the electromagnetic interference problem is avoided.

The invention provides a winch lifting point device for a shielding room and a using method thereof. The winch lifting point device comprises a guide wheel (1), a shielding case (2), a winch lifting point shielding case (3), a stopping block (5), a steel wire rope (10), a winch (12) and a sheep eye lifting hook (7). One end of the steel wire rope (10) is connected with the winch (12) arranged on a winch bracket through the guide wheel (1), and the other end of the steel wire rope (10) is connected with the sheep eye lifting hook (7). The steel wire rope (10) penetrates through the winch hoisting point shielding case (3), the shielding case (2) is arranged between the steel wire rope (10) and the winch hoisting point shielding case (3), the steel wire rope (10) is provided with the stopping block (5), and travel switches are respectively arranged above and below the stopping block (5). The problem of hoisting point positioning of the winch is solved. According to the winch lifting point shielding device, a shielding case shell is arranged at the position where the steel wire rope passes through, and an automatic limiting device is installed in the case shell.

The invention relates to the technical field of mobile communication, and discloses a tunnel leaky cable communication system, i.e., main unit equipment for outputting a multi-channel intermediate frequency modulation signal at an information source part, then the intermediate frequency modulation signal is transmitted by utilizing a leaky cable and is radiated to a space in a tunnel, and the intermediate frequency modulation signal is converted into a multi-channel radio frequency carrier signal at a target working frequency higher than the cut-off frequency of the leaky cable by using vehicle-mounted relay unit equipment arranged on a carriage body of a running train carriage in a tunnel, and the multi-channel radio frequency carrier signal covers the interior of the carriage, so that anovel leaky cable supporting higher cut-off frequency does not need to be redeployed, the deployment cost, the construction cost and the difficulty of a mobile communication signal (especially a 5G signal) leaky cable coverage scheme with relatively high carrier frequency are greatly reduced, and multi-channel communication is supported; and on the other hand, the cooperative base station is adopted to perform system synchronization and equipment management on the vehicle-mounted relay unit equipment, so that the working robustness of the vehicle-mounted relay unit equipment is ensured.

The invention provides a laser-rotating arc composite welding system and a composite welding method thereof. The welding system comprises a laser welding part and an electric arc welding part, whereinthe laser welding part is used for generating laser beams; the electric arc welding part is used for generating electric arc; the electric arc welding part comprises a TIG rotating arc welding gun which can realize rotation of the electric arc; the TIG rotating arc welding gun comprises a cylindrical housing, a gear ring, a driving gear and a driven gear, wherein the gear ring is positioned at the inner wall of the cylindrical housing; the driving gear is arranged inside the cylindrical housing and is driven to rotate by an electromotor; the driven gear is matched with the driving gear and the gear ring; a tungsten electrode of the TIG rotating arc welding gun is connected with the center of the driven gear; when the driving gear is driven to rotate by the electromotor, the driven gear rotates around the driving gear to drive the tungsten electrode to rotate around the driving gear so as to form rotating arc; and control ends of the laser welding part, the electric arc welding part and the electromotor all are connected with an integrated control center. The welding system and the welding method reduce the requirements on assembling clearance and can realize welding of high-reflectivity materials.

The invention relates to a high-precision and high-efficiency ultrafast laser processing method for micro-holes with a large depth-to-diameter ratio, which belongs to the technical field of high-precision intelligent laser manufacturing, and applies high-precision laser space shaping technology and high-efficiency process judgment control method to micro The shape repair of deep through-holes can improve the shape quality and processing efficiency of micro-holes. The method is: set the corresponding laser processing technology according to the material properties and processing technology requirements; use Gaussian laser to drill holes in the target; use real-time monitoring The device monitors the target, and when the target is penetrated, the laser energy distribution is converted from a Gaussian type to a flat-top type; the flat-top laser is used to repair the shape of the microhole; the real-time monitoring device is used to monitor the shape of the microhole outlet to meet the requirements When the next micro-hole processing. The invention adopts the combination of Gaussian laser processing and flat-top laser repairing, real-time monitoring and feedback control of the processing method of the processing flow, and effectively improves the processing quality and processing efficiency of microholes.

The invention relates to a high-precision, high-efficiency and ultrafast laser machining method for micropores with the large depth-diameter ratio, belongs to the technical field of high-precision intelligent laser manufacturing. A high-precision laser space shaping technology and a high-efficiency process judgment control method are applied to morphology repair of micro-deep through holes, so that the morphology quality and the machining efficiency of the micropores are improved. The method comprises the following steps that a corresponding laser machining technology is set according to material attributes and machining technology requirements; a target material is punched through Gaussian laser; a real-time monitoring device is used for monitoring the target material, and when the target material is penetrated, laser energy distribution is converted into a flat top type from a Gaussian type; morphology repair machining is performed on the micropores by the aid of flat-topped laser; and when the real-time monitoring device monitors that the morphology of the outlet of the micropore meets the requirement, the next micropore is machined. According to the method, Gaussian laser machining and flat-topped laser repairing are combined, the machining mode that the machining process is monitored, fed back and controlled in real time is adopted, and the micropore machining quality and machining efficiency are effectively improved.

The invention provides a voltage and current detection device, and relates to the technical field of detection devices. The voltage and current detection device provided by the invention is connectedto two interfaces of a component to be detected, and comprises a loop cable and a bridge circuit, wherein the loop cable is provided with an input end and an output end; when the input end and the output end are connected with two interfaces of the component to be detected respectively, the input end and the output end are constructed into a loop with inside of the component to be detected; the bridge circuit is connected in series in the loop cable; two voltage output ends are provided at the bridge circuit; and after the loop cable is constructed into the loop with the inside of the component to be detected, the ratios of voltages at the two voltage output ends to original voltages at the two interfaces of the component to be detected are predetermined ratios. Through adoption of the detection device, the output voltage can be lowered to a degree at which the output voltage is harmless to the human body and equipment, and a high-voltage signal can be measured without being in contactwith the high voltage in the measuring process, so that the security is improved.

The present application provides a data processing method, device, computer equipment and storage medium, wherein the method includes: the screening server obtains the characteristic information of the target object stored in the blockchain system; the screening server determines whether there is Preset key information; when it is determined that there is preset key information in the feature information, the screening server returns a processing request to the blockchain system, wherein the processing request is used to instruct the blockchain system to perform preset key information on the target object. Processing operations. The above solution solves the current technical problem of lack of effective solutions for processing sensitive information on the chain, and achieves the technical effect of effectively processing sensitive information on the chain, reducing processing costs and processing difficulties.

The invention relates to the technical field of mobile communication, and discloses a tunnel leaky cable communication system, that is, a main unit device that outputs a multi-channel intermediate frequency modulation signal in the source part, and then uses the leaky cable to transmit the intermediate frequency modulation signal and radiates to Space in the tunnel, and then use the vehicle-mounted relay unit equipment placed on the car body of the train running in the tunnel to convert the intermediate frequency modulation signal into a multi-channel radio frequency carrier signal at a target operating frequency higher than the cut-off frequency of the leaky cable, covering To the interior of the carriage, not only does it not need to redeploy new leaky cables that support higher cut-off frequencies, it greatly reduces the deployment cost, construction cost and difficulty of leaky cable coverage solutions for mobile communication signals with higher carrier frequencies (especially 5G signals), and supports Multi-channel communication; on the other hand, the system synchronization and equipment management of the on-board relay unit equipment are carried out by using cooperative base stations, which ensures the robustness of the on-board relay unit equipment.

The invention relates to a water meter chamber and a water meter device thereof. The water meter chamber comprises a rectangular water meter derrick which is composed of multiple longitudinal uprights and multiple cross beams and is provided with an opening at the upper end, reinforced concrete uprights arranged at four corners of the water meter derrick, a reinforced concrete panel arranged at the top of the water meter derrick, a chamber cover formed at the middle part of the reinforced concrete panel, wherein multiple supports are arranged on the cross beams at the inner side of the bottom end of the water meter derrick, supporting plates corresponding to the supports are respectively arranged on the longitudinal uprights at the two sides of the water meter derrick, a steel plate cover completely wraps the outer side of the water meter derrick, and through holes are arranged on the steel plate cover on the supporting plates at the two sides and correspond to supporting positions of the supporting plates. The water meter device used for the water meter chamber comprises a water inlet valve connected with the water inlet side of a water meter by virtue of a connecting pipe and a water outer valve connected with the water outlet side of the water meter by virtue of a connecting pipe, the other end of the water inlet valve is connected with a water inlet pipe, and the other end of the water outlet valve is connected with a water outlet pipe by virtue of an extensible member. The water meter chamber and the water meter device thereof provided by the invention are simple in structure and convenient to mount, and can be produced industrially.

The invention discloses a three-way pipe for casting and a use method thereof. The three-way pipe for casting comprises an air feeding pipe and an air discharging pipe which are connected; an air suction pipe communicating with the air feeding pipe is installed on the air feeding pipe, a pneumatic flexible pipe is connected to one end of the air feeding pipe, and the air discharging pipe is connected to the other end of the air feeding pipe; and the pneumatic flexible pipe is connected with a compressed air leather pipe through a glass steel pipe. According to the three-way pipe for casting and the use method thereof, effective removing for foreign matter such as cavity gravel can be achieved, working air strength is effectively ensured, a coating layer of a sand mold is prevented from being destroyed, and the labor strength is lowered; and meanwhile, by using the aerodynamics principle, a self-made miniature electric generator is additionally installed so that power supply for a highlight torch can be achieved.

The invention discloses a data communication system for a high-speed railway and a communication method of the data communication system. The communication method comprises the steps: a vehicle-mounted gateway obtains communication data of a mobile terminal through a network access device in a vehicle, thereby being used for transmitting the communication data to a base station through a vehicle-mounted antenna; the vehicle-mounted gateway obtains communication data of the base station according to a vehicle-mounted antenna, thereby being used for transmitting the communication data to the mobile terminal through the network access device in the vehicle; the vehicle-mounted gateway successively enables each vehicle-mounted antenna to conduct base station switching between a current communication base station and a next base station to determine a first vehicle-mounted antenna which conducts switching successfully; and after the first vehicle-mounted antenna conducts switching successfully, the vehicle-mounted gateway determines time of base station switching of each follow-up vehicle-mounted antenna respectively, and informs the next base station through the vehicle-mounted antenna, and is used for establishing communication connection between the next base station and each follow-up vehicle-mounted antenna. The system and the communication method resolve the problem that a vehicle body shields signals, and the problems that a large number of mobile terminals conduct base station switching simultaneously so that information channels are blocked, and achieve base station quick switching, and guarantee switching success rate and communication quality during switching.

The invention provides a wireless network signal transmission system, which comprises a mixer, a coaxial cable, a frequency divider and a duplex antenna. The mixer can mix wireless network signals and television signals, the coaxial cable is connected with an output end of the mixer, the frequency divider is connected with the coaxial cable and divides the wireless network signals and the television signals, and the duplex antenna is connected with an output end of the frequency divider and transmitting the wireless network signals. By the wireless network signal transmission system, the number of access points of the wireless network can be reduced, cost is reduced and frequency spectrum interference is avoided.

The invention discloses an internal combustion engine piston monitoring system achieving induction power supply. The internal combustion engine piston monitoring system comprises a sensor, a controller, a power source, a wireless transmitter-USB converter, a data line, a USB serial port and a computer. The internal combustion engine piston monitoring system is high in universality, low in cost and high in operability, transmission of different kinds of functional data of a piston is completed in a wireless communication manner, power is permanently supplied to the system in a magnetic induction line cutting manner, the defects of a traditional monitoring method are overcome, observability of monitoring data and reliability of an internal combustion engine piston testing system are improved, and the experiment difficulty is reduced.

The invention relates to a shield ball, which comprises a shield ball body shaped like a gyrating column, wherein a stepped mounting hole is formed in the axis of the shield ball body in an extending manner in the axis direction; a sinking hole for sinking and fixing the head of a fastener of the shield ball is formed in a large hole neck section of the mounting hole. A hole surface at the opening end of the sinking hole and a side surface of the shield ball body are connected onto a longitudinal cross-section of the shield ball body through a transition cambered surface tangential to the two surfaces; an end surface, away from the sinking hole, of the shield ball body, is a mounting surface for being connected with a to-be-shielded workpiece in a matching way. When the shield ball provided by the invention is used in an insulation test of a 126 kV GIS (Gas Insulated Switchgear) three-phase common box type current transformer, the shield ball can be fixed and assembled on a central conductor only by using a fastener, the operation of the mounting process is very simple and convenient when compared with the operation of the conventional manner that a connecting cylinder and a sleeve are adopted for shielding.

The invention discloses a melting and electromagnetic constraint shaping system capable of performing efficient electro-thermal conversion, relates to a melting and electromagnetic constraint shaping system, and aims to solve the problems of excessively large loss of a crucible, difficulty in smelting a high-titanium-niobium aluminum alloy or poor superheat degree of high-titanium-niobium aluminum alloy liquid, non-uniform electromagnetic force and poor organization control effect due to small cavity size of the conventional continuous melting and electromagnetic constraint system and unreasonable matching of a sensor and the crucible. The melting and electromagnetic constraint shaping system comprises a crucible main body, a water inlet pipe, a water outlet pipe, a thin water pipe, an induction coil and a magnetizer, wherein the crucible main body consists of an upper half body and a lower half body; each of the upper half body and the lower half body is processed from an integral copper block through linear cutting and drilling; the water inlet pipe is communicated with the lower half body through the thin water pipe; the water outlet pipe is communicated with the lower half body through the thin water pipe; the induction coil sleeves the upper half body; the magnetizer surrounds the outside of the induction coil. The melting and electromagnetic constraint shaping system is applied to the field of electro-thermal conversion.

The invention belongs to the technical field of shielding, and discloses a shielding ring structure at a sharp corner of a transformer opening, which comprises a shielding ring with a semicircular cross section for covering a transformer opening sharp corner, and a fixing plate arranged on the side edge of the shielding ring. After the shielding ring structure at the transformer opening sharp corner is installed, the shielding ring is tightly attached to the opening of a shielded body, the sharp corner at the opening is effectively shielded, the safe insulation distance from the opening body to a coil and a lead is reduced, and therefore the size of an inner cavity of the transformer is reduced, and the manufacturing cost is reduced.

The invention discloses a method for micro-arc oxidation in a cold plate air duct, and relates to the technical field of cold plate surface engineering. The method comprises the following steps of (1) cleaning and deoiling a cold plate, and then spraying strippable paint on a non-micro-arc oxidation area; (2) placing the cold plate on a micro-arc oxidation tool; and (3) adjusting power supply parameters and carrying out micro-arc oxidation. The method has the beneficial effects that by adopting the micro-arc oxidation tool, the shielding problem of an ultra-narrow gap power line is solved, the high uniformity of electric field distribution in an ultra-narrow gap is effectively ensured, the quality uniformity of a micro-arc oxidation film layer can be improved, and therefore it is ensured that the micro-arc oxidation quality of a product meets the application requirement. The micro-arc oxidation film layer prepared by the method has the capability of resisting acid salt mist for at least 192 hours, which is far better than the capability of resisting salt mist corrosion for 96 hours of a common micro-arc oxidation film layer.

The invention discloses a connection line for a cable television terminal. The connection line with good shielding effect comprises a coaxial cable and a connector. The coaxial cable consists of a sheath, a shielding screen arranged in the sheath and an inner conductor arranged in the shielding screen. A fixed plate is arranged in the connector, the end of the inner conductor runs through the fixed plate to extend into the connector, a connecting end of the shielding screen extends out of one end of the sheath by a certain distance, and the connector is sleeved on the connecting end of the shielding screen. The connection line has the advantages that the problem about shielding of the inner conductor at a joint between the coaxial cable and the connector is solved, the shielding effect is improved, signal leakage is eliminated, external interference is avoided, video and audio signal quality is improved greatly, and the connection line is simple in structure and convenient to install.